|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--helma.xmlrpc.applet.HandlerBase
Convenience base class for AElfred handlers.
This base class implements the XmlHandler interface with
(mostly empty) default handlers. You are not required to use this,
but if you need to handle only a few events, you might find
it convenient to extend this class rather than implementing
the entire interface. This example overrides only the
charData
method, using the defaults for the others:
import com.microstar.xml.HandlerBase; public class MyHandler extends HandlerBase { public void charData (char ch[], int start, int length) { System.out.println("Data: " + new String (ch, start, length)); } }
This class is optional, but if you use it, you must also
include the XmlException
class.
Do not extend this if you are using SAX; extend
org.xml.sax.HandlerBase
instead.
XmlHandler
,
XmlException
,
HandlerBase
Constructor Summary | |
HandlerBase()
|
Method Summary | |
void |
attribute(java.lang.String aname,
java.lang.String value,
boolean isSpecified)
Handle an attribute assignment. |
void |
charData(char[] ch,
int start,
int length)
Handle character data. |
void |
doctypeDecl(java.lang.String name,
java.lang.String publicId,
java.lang.String systemId)
Handle a document type declaration. |
void |
endDocument()
Handle the end of the document. |
void |
endElement(java.lang.String elname)
Handle the end of an element. |
void |
endExternalEntity(java.lang.String systemId)
Handle the end of an external entity. |
void |
error(java.lang.String message,
java.lang.String systemId,
int line,
int column)
Throw an exception for a fatal error. |
void |
ignorableWhitespace(char[] ch,
int start,
int length)
Handle ignorable whitespace. |
void |
processingInstruction(java.lang.String target,
java.lang.String data)
Handle a processing instruction. |
java.lang.Object |
resolveEntity(java.lang.String publicId,
java.lang.String systemId)
Resolve an external entity. |
void |
startDocument()
Handle the start of the document. |
void |
startElement(java.lang.String elname)
Handle the start of an element. |
void |
startExternalEntity(java.lang.String systemId)
Handle the start of an external entity. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public HandlerBase()
Method Detail |
public void startDocument() throws java.lang.Exception
The default implementation does nothing.
startDocument
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#startDocument
public void endDocument() throws java.lang.Exception
The default implementation does nothing.
endDocument
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#endDocument
public java.lang.Object resolveEntity(java.lang.String publicId, java.lang.String systemId) throws java.lang.Exception
The default implementation simply returns the supplied system identifier.
resolveEntity
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#resolveEntity
public void startExternalEntity(java.lang.String systemId) throws java.lang.Exception
The default implementation does nothing.
startExternalEntity
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#startExternalEntity
public void endExternalEntity(java.lang.String systemId) throws java.lang.Exception
The default implementation does nothing.
endExternalEntity
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#endExternalEntity
public void doctypeDecl(java.lang.String name, java.lang.String publicId, java.lang.String systemId) throws java.lang.Exception
The default implementation does nothing.
doctypeDecl
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#doctypeDecl
public void attribute(java.lang.String aname, java.lang.String value, boolean isSpecified) throws java.lang.Exception
The default implementation does nothing.
attribute
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#attribute
public void startElement(java.lang.String elname) throws java.lang.Exception
The default implementation does nothing.
startElement
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#startElement
public void endElement(java.lang.String elname) throws java.lang.Exception
The default implementation does nothing.
endElement
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#endElement
public void charData(char[] ch, int start, int length) throws java.lang.Exception
The default implementation does nothing.
charData
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#charData
public void ignorableWhitespace(char[] ch, int start, int length) throws java.lang.Exception
The default implementation does nothing.
ignorableWhitespace
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#ignorableWhitespace
public void processingInstruction(java.lang.String target, java.lang.String data) throws java.lang.Exception
The default implementation does nothing.
processingInstruction
in interface XmlHandler
java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#processingInstruction
public void error(java.lang.String message, java.lang.String systemId, int line, int column) throws XmlException, java.lang.Exception
The default implementation throws XmlException
.
error
in interface XmlHandler
com.microstar.xml.XmlException
- A specific parsing error.java.lang.Exception
- Derived methods may throw exceptions.com.microstar.xml.XmlHandler#error
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |